Sacrificial anodes
Aluminum and zinc anode alloy compositions
Available zinc alloys
ZINC MIL-A-18001-K - MIL Spec alloys are ideal for fresh or brackish water.
| Alloy type | ZINC MIL-A-18001-K |
|---|---|
| Iron (Fe) | 0.005 max |
| Silicon (Si) | N/A (0.00) |
| Copper (Cu) | 0.005 max |
| Zinc (Zn) | remainder |
| Indium (In) | N/A (0.00) |
| Titanium (Ti) | N/A (0.00) |
| Others (each) | 0.10 max |
| Aluminum (Al) | 0.1 - 0.5 |
| Lead (Pb) | 0.006 max |
| Cadmium (Cd) | 0.025 - 0.07 |
Electrochemical properties
| Alloy type | ZINC MIL-A-18001-K |
|---|---|
| Open circuit potential | -1.05 Volts (Ag/AgCl) |
| Closed circuit potential(1) | N/A |
| Seawater capacity @25C | N/A |
| Seawater capacity @ 5C | N/A |
| Seabed mud capacity (3) | N/A |
| Seabed mud capacity @ 5C | N/A |
| Nominal current capacity | 780 amp-hr/kg |
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All specifications subject to change without notice